Learn crucial skills for troubleshooting Cisco networks, including troubleshooting methodology, when to resolve or escalate, the neighbor discovery protocols CDP and LLDP, the Cisco Design Model, and how to discover and solve common network problems.
Troubleshooting can appear to be complex and mysterious. However, if you approach solving problems with an understanding of data networking and a method to work towards solution, troubleshooting can be more about persistence than anything magical. In this course, you will learn a methodology to approach troubleshooting, how to use the OSI and TCP/IP models to understand networked systems, and examine to approach solving IT problems with flexibility. You'll learn about CDP and LLDP and how to use these protocols to build a map of a network. Additionally, you'll understand the Cisco Design Model. Finally, you will see how to use ping and other utilities to investigate simple network issues, and see the error messages that occur from simple mistakes. By the end of this course, you'll have a solid understanding of the troubleshooting concepts covered on the Cisco CCNA 200-125 and 100-105 exams.
Course Overview Hi everyone, my name is Ross Bagurdes and welcome to my course, Troubleshooting Essentials. I'm a network engineer with 20 years experience in building and managing enterprise networks and teaching people about them. Troubleshooting can be an overwhelming topic, but the more knowledge you have about the details of a system's operation, the more effective troubleshooter you can become. Some of the major topics we will cover include basic troubleshooting methodology as well as discuss some flexibility that we have when we're doing troubleshooting. We'll also introduce Cisco Discovery Protocol and learn how we can use CDP to map a network with very little knowledge about that network to begin with, and we're going to wrap up the course looking at some common errors when we're working with networks. By the end of this course you'll have a method to do troubleshooting, as well as motivation to learn the details of the protocols that make data networking operate. Before beginning this course, I recommend that you complete the previous courses in the CCNA Series, and from this course, it's going to help us move along into the future courses in the CCNA Series. I hope you'll join me on this journey to learn troubleshooting with the Troubleshooting Essentials course at Pluralsight. (ambient music)